Improvement in heating-drums



G. WQ BALL.

. Heating-Drums. 10.147.742 Patented Feb.24,1874. u @I :15 Fig.1.

am. I we im' (47' W fw /lw Y UNITED STATES PATENT OEEIeE.

'GEORGE W. BALL, OF NORTH MADISON, INDIANA.

IMPROVEMENT IN HEATING-DRUMS.

Specification forming part of Letters Patent No. 147,742, dated February 24, 1874 application filed November 29, 1873.

To all whom it may concern:

Be it known that I, GEORGE W. BALL, of North Madison, in the county of Jefferson and State of Indiana, have invented certain Improvements in Warming and Ventilating Houses for Storing Fruit and Vegetables, of which the following is a specification:

My invention consists in the combination and arrangement of certain heating and ventilating pipes and apparatus, whereby the air in the fruit-house is maintained pure and of the proper temperature. My invention is especially designed for the preservation of apples and sweet-potatoes through the winter season 5 and, after careful experiment, I have ascertained that thorough ventilation', coupled with a careful regulation of the temperature in the storing-house, is not only of importance, but is absolutely essential. The temperature should not pass beyond the extremes of 500 and 750 Fahrenheit for the preservation of sweet-potatoes, and 370 to 500 for apples; and for the purpose of maintaining this temperature with proper ventilation I have invented the system which I will now describe.

In the drawing is shown my arrangement of draft and heating pipes.

Figure l is a plan. Fig. 2 is a vertical midsection through the line w fr in Fig. l.

In these views I have supposed the storehouse, to adjoin the kitchen of a farm-house, and the heat to be derived from an ordinary kitchen-stove; but a special heating apparatus, located in any position outside of the fruithouse, may be more convenient under some circumstances.

Let A A represent a store-house, constructed with double walls, and the annular space between filled with sawdust or other cheap nonconducting material. The ceiling is also overlaid with sawdust, and the oor is of earth. In the center of the floor is located a small rectangular furnace, O, of brick, surmounted by a drum of sheet-iron, D, entirely closed up, except where pipes are attached, and small opening c in the bottom. E is a kitchen-stove, from which heat is obtained, provided with the usual pipe F. This pipe has a branch, G, leading to and opening into the drum D, said branch being inclined at about the angle shown in the drawing. Another pipe, H, leads from the drum D to a flue, I. Out-off valves or dampers b and Z are placed in the pipes F and G, respectively, for the purpose of changing the course of the draft, as may be desired.

A smaller pipe, J, for the admission of pure warm air, enters the pipe G, as shown, and passes through it and through the drum D, opening into the store-house. The pure air is brought from any point without the building, and, in passing through the het air in the pipe G, has the temperature raised to the required degree. A stop-cock, e, is provided in the pipe J to prevent the entrance of any or all the air, if desired. Tubes or pipes g g, provided with suitable covers h h, are placed around the sides of the building to admit cold pure air at will, whenever the temperature and state of the weather renders it necessary.

A re in the furnace O is only necessary during extremely cold weather, and may be regarded in the light of a precautionary device. When it is used, the valve cl isI closed, the furnace door or damper a opened, and the admission of pure air regulated by means of the pipes e, c, and J.

For ordinary warming, the door a is closed, valve d opened, and valve b closed, which causes the heated air to pass inward through the pipe G and outward through the pipe H.

If the ventilation is to be regulated at the same time, the door a and valve or cock e in pipe J are opened, the former permitting the escape of impure air through the pipe H, and the latter admitting pure air to supply its place.

When perfect ventilation alone is required, the valve b and door a are opened, and the valve i closed.

The hot air from the stove passes off through the pipe F, which causes an upward draft through the inclined pipe G, the impure air entering the drum D through the furnacedoor a and aperture c. This aperture should not be larger than the opening in the pipe G.

My reason for admitting the air into the drum in the manner above described is, that it produces a better draft, and consequently better ventilation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The drum D, furnace O, outer heating apparatus E, pipes F, G, H, and J, provided with valves b d e, all constructed, combined, and

arranged in the manner shown, and `for the" purposes set forth.

Witnesses: GEORGE WBBALL.

W. T. HUGHES, HENRY CONNETT, J r. 

